M87.834
BillableOther osteonecrosis of right ulna
HCC Category Mapping
V28HCC 92 — Bone/Joint/Muscle Infections/Necrosis
0.209V24HCC 39 — Bone/Joint/Muscle Infections/Necrosis
0.482ESRDHCC 39 — Bone/Joint/Muscle Infections/Necrosis
0.000RxHCCHCC 80 — Bone/Joint/Muscle Infections/Necrosis
0.000What This Code Means
Death of bone tissue in the right ulna (smaller forearm bone) due to causes other than trauma or infection, leading to bone deterioration and potential collapse.
Coding Tips
- •Distinguish between osteonecrosis of the radius versus ulna, as they are separate codes
- •Document the stage of osteonecrosis if available, as this may influence clinical management
Clinical Significance
Osteonecrosis of the right ulna represents a chronic bone condition affecting the medial forearm bone, potentially compromising elbow and wrist function. This diagnosis has significant risk adjustment implications due to the ongoing orthopedic management requirements and potential for progressive disability.
Documentation Requirements
- ✓Specific identification of the right ulna as the affected bone
- ✓Documentation of osteonecrosis from causes other than idiopathic or drug-induced
- ✓Imaging evidence (MRI, bone scan, CT) confirming ulnar bone necrosis
- ✓Clinical presentation including elbow or forearm pain and functional limitations
- ✓Exclusion of infectious or traumatic causes as primary etiology
- ✓Assessment of impact on arm function and activities of daily living
- ✓Documentation of any contributing risk factors or underlying conditions
- ✓Provider evaluation of treatment options and disease progression
Commonly Confused Codes
M87.034 — Idiopathic aseptic necrosis of right ulna - specifically idiopathic etiologyM87.036 — Idiopathic aseptic necrosis of unspecified ulna - lacks laterality and different causeM86.834 — Other osteomyelitis, right ulna - infectious bone disease rather than necrosisS52.601A — Unspecified fracture of upper end of right ulna - acute trauma rather than chronic conditionM25.521 — Pain in right elbow - symptom code rather than specific bone pathology
Code Hierarchy
└M87Osteonecrosis└M87.8Other osteonecrosis└M87.83Other osteonecrosis of radius, ulna and carpus└M87.834Other osteonecrosis of right ulna
└M87.834Other osteonecrosis of right ulna